Smiley face part one
A yellow face with a black outline, two black eyes, and an implied smile rendered as a static SVG graphic. The face is built from circles positioned relative to the center of a 960×500 canvas, using hardcoded offsets for the eyes and a D3 `arc()` path for the intended mouth (though no mouth element is actively drawn in the code). The example displays D3 v7 and React 17, rendering via JSX and `ReactDOM.render` with SVG elements.